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Advantages of adding humic acid to fertilizer

June 22, 2022

Humic acid fertilizer effects on various fertilizers

Synergistic effect on nitrogen fertilizer. Humic acid is a natural urease inhibitor, which can slow down the enzymatic hydrolysis of urea and reduce ammonia volatilization; the carboxyl and phenolic hydroxyl groups in humic acid have complexing effects on ammonium nitrogen, adsorption and slow release, and can reduce nitrogen loss. Improve nitrogen utilization rate.

Synergistic effect on phosphate fertilizer.

Humic acid can inhibit the fixation of phosphorus in the soil, increase the movement distance of phosphorus in the soil, and at the same time, delay the conversion of available phosphorus to delayed and ineffective phosphorus, activate soil fixed phosphorus, increase soil available phosphorus content, and increase the use of phosphorus fertilizer Rate and fertilizer efficiency.

Advantages of adding humic acid to fertilizer

Humic acid fertilizer synergistic effect on potash fertilizer.

Potassium humic acid has strong cation exchange capacity and adsorption capacity, and its functional groups can absorb and store potassium ions, so that potassium fertilizers slowly decompose, increase the release of potassium, and increase the content of available potassium; activate soil potassium and increase the utilization rate of potassium fertilizer.

Synergistic effect on trace elements.

 Humic acid powder flakes and insoluble trace elements can undergo a chelation reaction to form a humic acid trace element chelate that has good solubility and can be absorbed by crops, thereby facilitating the absorption of trace elements by roots and leaves.

Soil environmental protection function

Improve soil environmental conditions. The use of humic acid can change the physical and chemical properties of soil with high salt content, high alkalinity, highly dispersed soil particles, and poor soil structure, and promote the formation of soil aggregates to make them into a good state, thereby creating a growth and development of plant roots good conditions.

Potassium humic acid can promote the formation of soil aggregates.

The hydroxyl and carboxyl functional groups in humic acid are easy to solidify with the calcium ions in the soil, and then through the physiological action of plant roots, the soil aggregate structure is formed, so that the soil's porosity is relatively increased and the permeability is better. , Which is conducive to the absorption of nutrients and normal growth of crops.

Using the principle of neutralization reaction between the acidity of humic acid and the alkalinity in saline-alkali soil, the pH value of the soil can be adjusted to achieve the effect of controlling saline-alkali. Humic acid is dark in color, which is good for the absorption of solar energy. When humic acid is decomposed by microorganisms, it releases heat. Sufficient humic acid in the soil can increase the ground temperature and fully play a role in resisting spring cold.

Prevent heavy metal pollution in the soil. Organic humic acid participates in the ion exchange reaction in the soil, adsorbs and fixes the heavy metal ions in the soil to prevent them from entering the biological cycle; it can stabilize the soil structure and provide substrate and energy for the activities of soil microorganisms, thereby indirectly affecting the activity of heavy metal ions in the soil.

Humic acid reacts with heavy metal ions in the soil to passivate heavy metal ions and prevent heavy metal ions from entering the plant system in large quantities.